Concrete insert



Nov. 7, 1933. v s. c. AWBREY 1,933,536

CONCRETE INSERT Filed Sept. 18, 1930 H I ll 66 INVENTOR, Saw/x1e![F/firirey.

A TTORNEYS.

Patented Nov. 7, 1933 I UNITED STATES PATENT OFFICE CONCRETE INSERTApplication September 18, 1930, Serial No. 482,767, and in Canada May18, 1930 6 Claims. (Cl- 72-105) This invention relates to insertsadapted to be embedded in a concrete structure and having an opening inthe outer face thereof for the reception of a bolt by means of which,members may be securely attached in position to the concrete structure.

One of the objects of the present invention is the provision of aninsert adapted to be embedded in a concrete structure comprising a boxhaving an elongated slot in the outer surface and an irregular surfaceon its inner face of said box adjacent each of the opposite elongatedsides of said slot and a bolt having a head provided with an irregularsurface adapted to be inserted in said slot to engage said irregularsurface in said box to prevent relative movement of said bolt and insertwhen they are in the operative position.

It has been found in practice that the rectangular shaped insert is notsuitable for use where the reenforcing rods are to be positionedadjacent the lower edge of'the concrete wall and in horizontal alignmentwith the insert. To overcome this objection in the present invention thecon- .crete insert is provided with inwardly projecting side membershaving the opposite end portions thereof extending differentdistances,from the main body of the insert to permit the positioning ofreenforcing rods adjacent the outer surface of the wall.

Another object of this invention is the provision of .an insert adaptedtoreceive a bolt for supporting any construction member, said bolt beingmounted in said insert for longitudinal adjustment and means integralwith said bolt and insert whereby they are maintained in flxed relativepositions.

A further object of the present invention is the provision of an inserthaving means whereby it is securely anchored in the concrete structure.

An even further object of the invention is to provide an insertcharacterized by a quickly attachable back plate and a series of offsetbearing feet disposed in spaced apart parallel planes, said offset andfeet precluding displacement .in any direction.

Other objects of this invention are simplicity and cheapness ofconstruction, ease of operation Fig. 2 is a sectional view of the insertembedded in a concrete structure and to which is attached an angleironfor supporting the facing of the building.

Fig. 3 is a reduced perspective view of the rear side of the insert. 50

Fig. 4 is an enlarged sectional view of the insert positioned in theconcrete.

Fig. 5 is a perspective view of a modified formofthebolttobeusedinthisinsert.

Fig. 6 is a perspective view of the bolt formed to properly functionwith the insert.

Fig. 7 is a perspective view of a modified form of the insert partlybroken away to more clearly disclose the construction.

Fig. 8 is an especially constructed nut which may be operativelyassociated with the insert.

Like reference characters designate similar parts throughout the severalviews and the numeral 10 designates a box formed by a body member 11 anda U-shaped member 12. Body member 11 comprises a flat outer face 13,extended side members 14 and 15 and shorter side members 16 and 1'1which extend inwardly to form inwardly projecting anchoring membershaving flanged edges 18 and 19 respectively which more 30 securelyanchor the insert in the concrete structure. Step 20 formed betweenmembers 14 and 16 adds to the holding power of the insert in theconcrete by presenting a face at right angles to flanges 18 and 19.

It is to be noted that flanges 18 and 19 are dispoud in spaced apart,parallel planes. The lower flange bracing against any fulcrum pressureset up when the insert is in place.

The U-shaped member 12 is formed to snugly flt between side members 18and i7 beneath the pressed in converging lugs 20' to prevent any of thesoft concrete mixture from entering the box during the process ofconstruction. To allow member 12 to be positioned, the members 18 areflared slightly outwardly in conversin relation as shown in Fig. 4.

Formed in the outer face of member 11 is an elongated slot 21, the edgeof which is preferably spaced apart from the edges of face 13 and fromthe side walls of the box. Inturned serrated flanges 22 are formedadjacent the longitudinal edges of slot 21, to engage the serrations 23formed on the inner face of the elongated head 24 of bolt 25 to preventrelative movement of said insert and bolt when the nut 26 is screwed toposition as shown in Fig. 2. The elongated rectangular head 24 is of awidth slightly narrower than slot 21 so that it can be inserted into thebox 10 through the slot'21 then tinned so 110 that the serrations 23will register with the serrations 23' in flanges 22.

While regular serrations for preventing rela tive movement of the partshave been shown, it is evident that any coacting irregular surfaces willserve the same purpose. Also the inturned flanges may be dispensed with.Flanges 22 are of sufficient length to permit adjustment of the bolts toallow proper aligning of structural members to be secured thereby. Holes28, formed through outer face 13, are adapted to receive nails, notshown, for securing the insert to inside of the concrete forms prior tothe pouring of the concrete. These holes 28 are positioned between theends of U-shaped member 12 and the ends of the insert as shown in Fig.2.

The form of the bolt as shown in Fig. 4 provides for a bolt having anelongated head 24, havinga pair of parallel slots 41, which in turn areprovided with serrations 23 at their base. These serrations serve toengage the serrated flanges 22 to prevent relative movement of theparts.

It is apparent that the insert as described is suitable for use on theceiling, floor or side wall of a concrete structure to support partsthereon. In Fig. 2 which shows a typical installation when the insert isused on a vertical wall, the same is embedded in the reenforced concretestructure 0 with its outer face flush with the concrete face. An angleiron A which serves as a ledge to support the facing of the structure,is secured to the structure by passing the bolt 25 through a hole Bformed therein. It will be noted by referring to Fig. 2 that theconcrete structure is provided with reenforcing rods R which arepositioned in the usual manner so that the outer rod fits into the notchformed by the offsetting of the side members of the insert.

Referring to Fig. 7, which shows another form of the insert, it will benoted that the U-shaped member is held in place by members 50 whichangle toward each other at each end of the insert to overlie theU-shaped member 12. The sides 52 are continuous and the flange 54 formedalong the projected edge of each side 52 is continuous.

It may be desirable in some instances to utilize holes 31 formed inopposed relation through each side of the insert as shown in both forms.If so, a rod or the like not here shown may be passed therethrough,allowing the same to project outwardly on each side so that the samewill be embedded in the concrete to add an even more secure meansforholding the insert in place.

Besides forming a more rigid structure, the offset type of insertprovides a clearance for the elements of the structure with which it isto be used.

In the event the insert is to be used as a hanger and embedded in theceiling, the form of nut 60 shown in Fig. 8 may be used to rest in thebox-like structure and engage the serrations 23 with similar serrations62 formed along the one surface thereof which is set back from theprojecting ends 66. A tapped opening 68 receives a threaded member ofsuitable character when needed.

Since several of these inserts are used to support a single angleiron,and the holes are punched therein away from the job, also since it isimpossible to perfectly align the inserts in the concrete structure, itwill be necessary to adjust the bolt up or down in the slot in order toregister it with the hole or slot in the angle. When the nut is screwedto position and the coacting serrated portions are in inter-lockedrelation, the angle will be secured against movement relative to theconcrete structure.

The insert has been shown as constructed from sheet metal, however, ifso desired, it may be cast or otherwise produced without efiecting thenovel features of this invention.

I do not wish to limit this invention to the structure shown anddescribed since many modiflcations may be made within the scope of theappended claims without departing from the spirit thereof.

What I claim as new and desire to secure by Letters Patent is:

1. An insert adapted to be embedded in concrete, comprising a box havingextended side members, an elongated opening of uniform width in theouter face of said box, an inturned serrated flange adjacent each of theopposite sides of said elongated opening, each of said flanges beingspaced apart from its adjacent side member, and a unitary securingmember having an elongated, serrated head formed to be inserted in saidslot and adapted to be positioned to operatively engage and overhangboth of said serrated flanges.

2. An insert adapted to be embedded in concrete, comprising a box havingan elongated opening in the outer face thereof, an inturned serratedflange adjacent each of the opposite sides of said opening, said membersintegral with said box having flanges at the extended edges thereof,said sides each being divided into a short and a long portion wherebythe flanges are positioned in spaced apart planes.

3. An insert adapted to be embedded in con-- crete, comprising a boxhaving an elongated opening in the outer face thereof, side membersintegral with said box and extending therefrom, flanges on the extendededges of said side members, said side members each being divided intoportions extending diiferent distances from said box whereby the flangesare positioned in oii'set relation.

4. An insert adapted to be embedded in concrete, comprising a box havingan elongated opening in the outer face thereof, side members integralwith said box and extending therefrom, corresponding end portions ofsaid side members extending beyond the free ends thereof to form anofiset in each of said side members.

5. An insert adapted to be embedded in concrete, comprising a box havinga body member, a slot of uniform width formed in one side of the bodymember adapted to receive and hold a bolt and a U-shaped member forminga part of the box for the bolt head positioned entirely within theconfines of said body member, and converging lugs integral with saidbody member engaging the outer surface of said U-shaped memher tomaintain it in position in said body memher.

6. An insert adapted to be embedded in concrete, comprising a box havingan elongated opening of uniform width in the outer face thereof, aninturned, serrated flange adjacent and spaced apart from each of theopposite sides of said opening, a bolt having an elongated head providedwith a groove on its inner surface and serrations at the bottom of saidgroove adapted to engage said inturned, serrated flanges with the outerportion of said head positioned be tween said flanges and side wallsrespectively.

SANIUEL C. AWEEEY.

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